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hw/fsi: Introduce IBM's Local bus

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This is a part of patchset where IBM's Flexible Service Interface is
introduced.

The LBUS is modelled to maintain mapped memory for the devices. The
memory is mapped after CFAM config, peek table and FSI slave registers.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Ninad Palsule <ninad@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: - removed lbus_add_device() bc unused
       - removed lbus_create_device() bc used only once
       - removed "address" property
       - updated meson.build to build fsi dir
       - included an empty hw/fsi/trace-events ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Ninad Palsule 2024-01-26 04:49:46 -06:00 • committed by Cédric Le Goater
parent dc13909ed0
commit 99f0c046f4
9 changed files with 82 additions and 0 deletions
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43
hw/fsi/lbus.c Normal file
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/*
* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright (C) 2024 IBM Corp.
*
* IBM Local bus where FSI slaves are connected
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/fsi/lbus.h"
#include "hw/qdev-properties.h"
#include "trace.h"
static void fsi_lbus_init(Object *o)
{
FSILBus *lbus = FSI_LBUS(o);
memory_region_init(&lbus->mr, OBJECT(lbus), TYPE_FSI_LBUS, 1 * MiB);
}
static const TypeInfo fsi_lbus_info = {
.name = TYPE_FSI_LBUS,
.parent = TYPE_BUS,
.instance_init = fsi_lbus_init,
.instance_size = sizeof(FSILBus),
};
static const TypeInfo fsi_lbus_device_type_info = {
.name = TYPE_FSI_LBUS_DEVICE,
.parent = TYPE_DEVICE,
.instance_size = sizeof(FSILBusDevice),
.abstract = true,
};
static void fsi_lbus_register_types(void)
{
type_register_static(&fsi_lbus_info);
type_register_static(&fsi_lbus_device_type_info);
}
type_init(fsi_lbus_register_types);